Cellular REspiration Added Notes

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___ refers to an organic molecule generated as an intermediate during the catabolism of glucose

substrate molecules

process in which energy stored in the form of a hydrogen ion gradient across a membrane is used to drive cellular work such as the synthesis of ATP; energy- coupling mechanism that uses energy stored in the form of an H+ gradient across a membrane to drive cellular work

chemiosmosis

potential energy stored in the form of an electrochemical gradient, generated by the pumping of hydrogen ions across a biological membrane during chemiosmosis

proton- motive force

Compare fermentation and cellular respiration.

Both pathways use glycolysis to oxidize glucose and other organic fuels to pyruvate, with a net production of two ATP by substrate- level phosphorylation.

NAD+ is the oxidizing agent that accepts electrons from food during glycolysis

Contrast fermentation and cellular respiration.

A key difference is the contrasting mechanisms for oxidizing NADH back to NAD+, which is required to sustain glycolysis